What is the result of a cross product?
Space and AstronomyThe resultant of cross product of two vectors is a vector quantity. Vector cross product represents two vectors are orthogonal or perpendicular to the vector plane. What does the cross product show? The cross product a × b is defined as a vector c that is perpendicular (orthogonal) to both a and b, with a
What is Horizon line in photography?
Space and AstronomyA horizon line in photography is the literal line in a photograph across which the horizon travels. Horizons are the vanishing point where water or land meets sky, forming a natural line that anchors and divides a photograph. What is the horizon line? The terms “horizon line” and “eye level” are often used synonymously. Horizon
Does a rectangle have 4 congruent sides?
Space and AstronomyA rectangle is a quadrilateral because it has four sides, and it is a parallelogram because it has two pairs of parallel, congruent sides. All four angles are right angles. A square has two pairs of parallel sides and four right angles. All four of its sides are congruent. Does a rectangle always have 4
What is the position of our solar system within the Milky Way galaxy?
Space and AstronomyThe Solar System is located at a radius of about 27,000 light-years from the Galactic Center, on the inner edge of the Orion Arm, one of the spiral-shaped concentrations of gas and dust. The stars in the innermost 10,000 light-years form a bulge and one or more bars that radiate from the bulge. Where is
How big is the radiative zone?
Space and Astronomyabout 0.7 radii0.2 solar radii), and extends up to about 0.7 radii. How thick is the radiative zone? 300,000 km thick Core Radius of 150,000 km 10,000,000 K Radiative Zone 300,000 km thick 8,000,000 K Convective Zone 200,000 km thick 500,000 K Photosphere 500 km thick 5800 K Chromosphere 10,000 km thick 4,000 to 400,000
What is an extrema of a function?
Space and AstronomyWhat are extrema of a function? extremum, plural Extrema, in calculus, any point at which the value of a function is largest (a maximum) or smallest (a minimum). There are both absolute and relative (or local) maxima and minima. How do you find the extrema of a function? Finding Absolute Extrema of f(x) on [a,b]
What does it mean to collect like terms?
Space and AstronomyCollecting like terms is a way of simplifying algebraic expressions. It is also known as combining like terms. To do this we identify the like terms in an algebraic expression and combine them by adding or subtracting. See also: Simplifying expressions. What are collecting like terms? Collecting like terms means to simplify terms in expressions
What conditions are required for flow similarity?
Space and AstronomyIn fluid mechanics, dynamic similarity is the phenomenon that when there are two geometrically similar vessels (same shape, different sizes) with the same boundary conditions (e.g., no-slip, center-line velocity) and the same Reynolds and Womersley numbers, then the fluid flows will be identical. What are the necessary conditions for complete similarity for your wind tunnel
How do you prove congruency?
Space and AstronomyWhat are the 5 ways to prove congruence? There are five ways to find if two triangles are congruent: SSS, SAS, ASA, AAS and HL. What is SSS SAS ASA AAS? SSS stands for “side, side, side” and means that we have two triangles with all three sides equal. If three sides of one triangle
What are the differences between the Earth sun and moon?
Space and AstronomyThe earth is a planet, the Sun is a star and the moon is a natural satellite. The Sun and the Earth doesn’t change its shape but the moon continuously changes its shape( means it appears to be changing shapes). The Earth takes 365 days to complete one revolution around the Sun and this time